Home / 109,640.60-164,132.85-97,830.80

Finding the Fourth Proportional to 109,640.60, 164,132.85 and 97,830.80

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Solution

The fourth proportional to 109,640.60, 164,132.85 and 97,830.80 is: 146,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.60 : 164,132.85 = 97,830.80 : x
  2. Step 2: Convert to fraction form
    109,640.60/164,132.85 = 97,830.80/x
  3. Step 3: Cross multiply
    109,640.60x = 164,132.85 × 97,830.80
  4. Step 4: Simplify right side
    109,640.60x = 16,057,248,021.78
  5. Step 5: Solve for x
    x = 16,057,248,021.78/109,640.60
  6. Step 6: Final answer
    x = 146,453.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.